科普

世界上一共有七个族：血族，天使族，狼人，恶魔，兽族，狐族，人类。

其中人类大多数人是不知道其他族的存在的。

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血族等级分类： 

Level S吸血鬼之神（始祖）

Level A纯血种吸血鬼

Level B贵族阶级吸血鬼

Level C普通吸血鬼

Level D原本是人类的吸血鬼（被吸血鬼吸了血或是喝了吸血鬼的血，都会变成吸血鬼）

吸血鬼都会有一些能力，比如读心、透视、控制东西之类的。

等级低的吸血鬼感觉到比他等级高的吸血鬼就会情不自禁的臣服，这是不变的规律。

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天使族以羽翼分层：

不发光

发白光

发蓝光

发紫光

发金光

还有一种是堕天使羽翼是黑红相间的。

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狐族与世隔绝，很神秘

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血族与狼人是仇人

恶魔与血族是好友

兽族与狐族是好友

天使族和血族算不上仇人，但是不友好。